134523213 has 16 divisors (see below), whose sum is σ = 197612352. Its totient is φ = 80720000.

The previous prime is 134523197. The next prime is 134523217. The reversal of 134523213 is 312325431.

It is a cyclic number.

It is not a de Polignac number, because 134523213 - 2⁴ = 134523197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134523217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16848 + ... + 23513.

It is an arithmetic number, because the mean of its divisors is an integer number (12350772).

Almost surely, 2^134523213 is an apocalyptic number.

It is an amenable number.

134523213 is a deficient number, since it is larger than the sum of its proper divisors (63089139).

134523213 is a wasteful number, since it uses less digits than its factorization.

134523213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40476.

The product of its digits is 2160, while the sum is 24.

The square root of 134523213 is about 11598.4142450595. The cubic root of 134523213 is about 512.3881499318.

Adding to 134523213 its reverse (312325431), we get a palindrome (446848644).

The spelling of 134523213 in words is "one hundred thirty-four million, five hundred twenty-three thousand, two hundred thirteen".